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BRITISH STANDARD Characteristic values for welded thermoplastics constructions Ð Determination of allowable stresses and moduli for design of thermoplastics equipment The European Standard EN 1778:1999 has the status of a British Standard ICS 83.080.20; 83.140.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BS EN 1778:2000 BS EN 1778:2000 National foreword This British Standard is the official English language version of EN 1778:1999 The UK participation in its preparation was entrusted to Technical Committee PRI/80, Welding thermoplastics, which has the responsibility to: Ð aid enquirers to understand the text; Ð present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; Ð monitor related international and European developments and promulgate them in the UK A list of organizations represented on this committee can be obtained on request to its secretary Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ªInternational Standards Correspondence Indexº, or by using the ªFindº facility of the BSI Standards Electronic Catalogue A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages to 52, an inside back cover and a back cover The BSI copyright notice displayed in this document indicates when the document was last issued This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 February 2000 Amendments issued since publication Amd No Date Comments  BSI 02-2000 ISBN 580 35862 标准分享网 www.bzfxw.com 免费下载 (1 (8523($167$1'$5' 1250((8523e(11( (8523b,6&+(1250 2FWREHU ,&6 (QJOLVKYHUVLRQ &KDUDFWHULVWLFYDOXHVIRUZHOGHGWKHUPRSODVWLFVFRQVWUXFWLRQV 'HWHUPLQDWLRQRIDOORZDEOHVWUHVVHVDQGPRGXOLIRUGHVLJQRI WKHUPRSODVWLFVHTXLSPHQW 9DOHXUVFDUDFWpULVWLTXHVGHVFRQVWUXFWLRQV WKHUPRSODVWLTXHVVRXGpHV'pWHUPLQDWLRQGHVFRQWUDLQWHV DGPLVVLEOHVHWGHVPRGXOHVSRXUODFRQFHSWLRQGXPDWpULHO WKHUPRSODVWLTXH &KDUDNWHULVWLVFKH.HQQZHUWHIUJHVFKZHL‰WH7KHUPRSODVW RQVWUXNWLRQHQ%HVWLPPXQJGHU]XOlVVLJHQ6SDQQXQJHQ XQG0RGXOLIUGLH%HUHFKQXQJYRQ7KHUPRSODVW%DXWHLOHQ 7KLV(XURSHDQ6WDQGDUGZDVDSSURYHGE\&(1RQ6HSWHPEHU &(1PHPEHUVDUHERXQGWRFRPSO\ZLWKWKH&(1&(1(/(&,QWHUQDO5HJXODWLRQVZKLFKVWLSXODWHWKHFRQGLWLRQVIRUJLYLQJWKLV(XURSHDQ 6WDQGDUGWKHVWDWXVRIDQDWLRQDOVWDQGDUGZLWKRXWDQ\DOWHUDWLRQ8SWRGDWHOLVWVDQGELEOLRJUDSKLFDOUHIHUHQFHVFRQFHUQLQJVXFKQDWLRQDO VWDQGDUGVPD\EHREWDLQHGRQDSSOLFDWLRQWRWKH&HQWUDO6HFUHWDULDWRUWRDQ\&(1PHPEHU 7KLV(XURSHDQ6WDQGDUGH[LVWVLQWKUHHRIILFLDOYHUVLRQV (QJOLVK)UHQFK*HUPDQ $YHUVLRQLQDQ\RWKHUODQJXDJHPDGHE\WUDQVODWLRQ XQGHUWKHUHVSRQVLELOLW\RID&(1PHPEHULQWRLWVRZQODQJXDJHDQGQRWLILHGWRWKH&HQWUDO6HFUHWDULDWKDVWKHVDPHVWDWXVDVWKHRIILFLDO YHUVLRQV www.bzfxw.com &(1PHPEHUVDUHWKHQDWLRQDOVWDQGDUGVERGLHVRI$XVWULD%HOJLXP&]HFK5HSXEOLF'HQPDUN)LQODQG)UDQFH*HUPDQ\*UHHFH ,FHODQG,UHODQG,WDO\/X[HPERXUJ1HWKHUODQGV1RUZD\3RUWXJDO6SDLQ6ZHGHQ6ZLW]HUODQGDQG8QLWHG.LQJGRP (8523($1 &200,77(( )25 67$1'$5',=$7,21 &20,7e (8523e(1 '( 1250$/,6$7,21 (8523b,6&+(6 20,7(( )h5 125081* &HQWUDO6HFUHWDULDWUXHGH6WDVVDUW%%UXVVHOV ‹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www.bzfxw.com ,QYHVWLJDWLRQVHVWDEOLVKHGWKHYDOLGLW\RIWKHPXOWLSOLFDWLYHFRQQHFWLRQEHWZHHQWKHZHOGIDFWRUIODQGUHGXFWLRQ IDFWRU$. 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